9 References
9-3 Battery life
BL50T/BL75T/BL100T
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9
9-3 Battery life
■
Battery life
The lithium battery used for the battery unit has a limit. Check the battery periodically. For
details on how to check the battery, refer to "4-1 Checking the battery" (P.46).
We recommend replacing the battery before it reaches end of life.
Battery life
(Trickle life: Life of the battery when it is not frequently charged and discharged and when
it is discharged about once or twice per month)
Battery
type
Battery life
expectancy
(Ambient
temperature 40
degrees Celsius)
Battery life
expectancy
(Ambient
temperature 30
degrees Celsius)
Battery life
expectancy
(Ambient
temperature 25
degrees Celsius)
Long life
battery
5 years
8 years
10 years
※
Basically, the ambient temperature greatly affects the life of the battery.